AWS Certified Cloud Practitioner (CLF-C02) — Question 715

A company runs an uninterruptible Amazon EC2 workload on AWS 24 hours a day, 7 days a week. The company will require the same instance family and instance type to run the workload for the next 12 months.

Which combination of purchasing options should the company choose to MOST optimize costs? (Choose two.)

Answer options

• A. Standard Reserved Instance
• B. Convertible Reserved Instance
• C. Compute Savings Plan
• D. Spot Instance
• E. All Upfront payment

Correct answer: A, E

Explanation

Standard Reserved Instances offer the highest discount rate compared to Convertible Reserved Instances and are perfect for workloads with predictable, unchanging instance types over a 12-month period. Coupling this with an All Upfront payment option maximizes the overall discount compared to No Upfront or Partial Upfront options. Spot Instances are incorrect because they can be interrupted, making them unsuitable for continuous 24/7 workloads.